Bumper



W. G. JOHNSON BUMPER Filed ADIi1 8, 1927 Patented Sept. 5, 1927.

UNHTED STATE WILJEIRED G. JOHNSON, 013 ELYRIA, OHIO.

IB'UIMIER.

Appllcati on flled April 8, 1927. Seria1 N0. 181,991.

My inventi0n relates to bumper's and more particularly it relates to a bumper for guarding the projecting portions of supporting members.

One of the objects' of my inventio'n resides in the Provision of an improved bumper adapted 150 guard a projecting metallic ortion of a portable wheeled vehiCle to protect extraneous objects from injury by virtue of being struck by the projecting portions.

Another object of my invention resides lin the rovision 0f an improved bumper which may be readily applied to the projecting portions cf a wheeled Vehicle and which may be readily removed therefrom if desi1ed.

Another object of niy invention resides in the rovision cf a bumper Which is dumble in construction, economical to manufacture and eflicient in protecting extraneous objects from injury.

These and other objects cf my invention and the invention itself will become apparent from reference to the following description of an embodiment thereof and in which description reference will be had t0 the accompanying drawings forming a part cf this specification.

Referring to the drawings:

Fig. 1 shows a freut elevational view cf an embodiment cf my invention;

Fig. 2 shows a transverse medial sectiona1 view taken 011 the line 22 cf Fig. 1 and illustrating the same mounted on a support;

Fig. 3 shows a fragmenta'ry elevat1onal view of a portable wheel truck handle bar cmbodying rny invention; and

Fig. 4 shows a fragmentary end elevationa1 view of a vehicle wheel and axle embodyin my invention.

?Referring to the drawings and referrin first particularly to Figs. 1, 2 and 3 thereo whrein like parts are designated by like refenncls characters, at 10 and 11, 1 show a pair of upright handle part supporting arms having aligned apertures adjacent their uppermost ends through which project the threaded ends 12 and 13 cf the rod 15, the rod supporting the wo'oden handle bar 14 between the arms Nuts 16 and 17 are threaded onto the rod ends and project laterally cf the upright arms 10 and 11. Such a structure is quite coonly employed inconnection with Plattform trucks, and the like, and often such a handle and handle Support is duplicated at each end of the truck platform. The ends cf the arms and the projecting nuts when trucks employing handle constructions, as described, are used, strike against extraneous objects, such as furniture, walls, door jams, and the likc, considerably damaging same. 'By virtue of my invention, protection of extraneous objects from such damage is had by employing a bumper of improved design, disposed so as to guard projecting parts 0f the truck. Such a humper I show generally at 20, the major portion cf which preferably comprises an annulus, or 'toroid 21, of soft pliable nibber 01 like material capable of absorbing shocks, without damage, a cup-shapedimetallic reenf'orcing insert 01' plate 25 being e'mbedded therein and secured thereto by vulcanization of the rubber material while in contact therewith.

The cup-shaped metallic insert is preferably made, as shown, with a flat bottom Wall 22 and an outwardly flaring rim 24 joined by intermediate inclined side Walls 23. 'lhe cup-shaped plate 25 is apertured centralled so as to permit a threaded end 12 cf a holt, 1'001 01 shaft 15, t0 project therethrough, whereby the bumper comprisin the plate and rubber toroid may be holte to the vehicle 01 other structure which it is adapted t0 guard from contact with extraneous objects, a nut 16, shown inFig. 2, a nut 17, in Fig3, and a nut 42, in Fig. 4, bcing screw-threaded onto the end cf such a r0d 017 shaft f0rsuch purpose. The threaded end cf the rod, holt, 01 shaft, and the nut are therefore contained within a substantially cup-shaped recess having toroidal resilient side Walls 20 and below the rim cf such a so-called cup, as indicated at 33, which is the outer face of the toroid. The central opening cf the toroid containing the securing nut, such as,l6, Fig. 2, is 0f such a size as to permit a socket wrench, indicated at 28, t0 enter the toroid t0 engage the nut for tightening the same on the rod 15 01 t0 remove the same from the rod. The aperture 30 inthe metallic plate is preferably of a diameter less than the diameter of the ring aperture 26. A central recess 26 in the soft rubber annulus 01 toroid 21 is preferably provided with tapering side Walls 32 and is 0f a suflicient depth t0 pro jeg t beyond the nut 1Ild the end 01 the holt 01 rod supporting it. 'Ihe diameter 01: the central recess 0f the annulus is preferably subs'tantially equal 130 the transverse crosssecti0nal dimensions of the body of i:he annulus, as I fin that by so Proportioning the annulus, I obtain, f01 most purp oses very satisfactory results.

In apply-ing my improved bumper to Ehe handle bar such as that si1own an. M, the nut 16 is removed from the rod 15 and i'he bumper is placed 011 the rod with the rod projecting int0 the aperture 30 in the met;1- ]ic plate 25 Wil its threaded ortion 12 disposed in the 1ecess 26. 'Ihe nut 16 1s then threaded ont0 the rod; again 211101 tightened thereon by means of the socket w1*ench 28. The peripheml edge 0f the annuh 1s will project beyond die ends of the handle bar supp0rtin uprights 10 and 11 and prment contact t ereof with extraneous objects while th0 nut 16 is substantially enveloped by the bumper.

Referring 1:0 Fig. 4-0f the drawings, I illustrate 211100101 application oi my inventi0n applied t0 am ax1e 40 oi 0 wheel vehicle Wlth the threaciled end 41 0'f the an le projecting int0 010 centmi mcess 81 of the bump'er 20 UI1CI 0 hub nut 42 threaded onto the axle 011d disposecl within the said cantral recess 31 htemlly 0f 0 wheei 43.

I have iilustmted an embodiment 013 my invention'in hat: tw*0 upplications 0f use; however I 610 n0t wish t0 be Iimited to ithe sp'ecific appiications thereof E'LS herein illustrated and escribe, as I contemplate ernbod ying my improved bumper 011 numerous prmectmg portions cf numerous movable and stationar objects t0 pievent damaging contact 0f suc 1 projecting portions with ex traneous objectm.

A bumper c0nstruction as heretof'ore describedz possesses suiiicient rigidity t0 prevent the same from becoming wem 01 I0ose 011 the su orting article 011d possesses sufficient reslllency to abs0ib shocks resulting from contact with extmneous objects with- 0ut injury 130 the supporting paart 0x the objeet With which it comes in contact. The bumper besicies possessing dumbility is econom1cal 130 manufacture in large quantities, and may eithei be applied to a portable 01 stationary object 215 0 pa.:mt thereof 01' may be urchased as an accessory und applied to t 1e same.

Many times when a bumper is applied 150 0 portable artic1e, the nut may be turned by hand t0 contact with the metallic insert 01 plate 25 and then by rotatin the bumper the nut may be sufliciently tigI1tened 011 the rod withou the aid of 0 wrench. This is highly desirable wherein an article is equipped with nuts of 21 non-standard size.

Having thus described my invention in a specific embodimen't, I am aware that numerous and extensive departures may be made from die embodiment herein illustrated and disciosed, without departingfrom the spirit of my invention.

I claim:

l. As an article of manufacture, a bumper for projecting portions of wheeled vehicles, comprising a body of soft rubber 01 rubber composition material and a, centrally apartqred metallic plate having a flat ortion d1sposed flush with, and vulcalnize to, a

side of the body.

2. As an article of manufacture, a bumper adapted for attachment to the ends oi push handles for vehicles, the axle ends thereof, and the like, comprising an unnulus com posed mainly 0f soft rubber material, a cant-rally apeltuled, substantiaily rigid, metallic plate disposed With ab least a ortion 0f its 0uter face flush with a side of the annulus the inside diameter 0f th0 annulus bein substantially equal to the thickness thereot 3. As an article of manufacture, a bumper 0ciapted for mttachment t0 11110 ends 015 push handles for vehicles, the axle ends thereof, and the like, comprising a toloid composed mainl} 015 soft rubber materiml, 013 a Inetallic cup-sh0peciplate disposeci Within the 11151130- 1ia1 0i the toroid 0;E smaller diameter thzm the 0utsidia diameter 0f the toroid and hav ing sid0 Walls of gfeater diametetthan the bore there0f, s0ici plate beinp; centmlly apez= tured t0 receive 0 threaded end of a holt, !]I].CI ithe bore cf the toroid being suiiicieny large to achnit 0 nui; t0 be miixed 011 the end. of the 100113 pmjecting through the plate, anrI the 011d 0f 0 s0cket wrench for t1ghtening the 1001117.

QI. Ass an article 01 manufaeture, a bumper for pr0jecting pertions 0f wheeled vehicles, comprising an zmnuius 0f s0ft rubber materia1 anal a centraiiy apertured metallic cup with diverging sides projecting into ti1e annulus.

5. As an article 0f manufacture, a bumper adapted for attachment t0 th0 ends of push handies for vehicles, the 0x10 ends thereof, andthe like, comprising an annulus composecl 0:E soft rubber material, and a cantmlly apertured substantially rigid metallic cup with diverging sides project1ng into the annulus, said annulus and said metallic cup biIlg cementitiously bonded together.

6. As an articie 0f manufacture, a, bumper, 0 support f0r the bumper, said bumper comprising a body of rubber 01 rubber compositi0n material, a centmlly apertured metallic pla*te imbedde Within the body adjacent its supporting face, said body being recessed f10m the other side of the plate, said recess aligned with said apertre, said body being formed with rounded lateral surfaces adapted t0 fand extraneous articlesnorning in coutact therewith, f1om the support.

7. As an article of manufacture, a bumper, for projectixig portions of-wheeled vehicles comprising a body of soft rubber o1 rubber com'positi0n material, a centrally a rtured 5 metallic plate imbedded in the bo y adjacent its supporting surface, said body being centrally recessed from the other side of the plate und having rounded lateral surfaces adapted to fand extraneous articles coming in contact therewith, from the vehicle.

In testimony whereof I hereunto aflix my sigmture this 25th day of March, 1927.

WILFRED G. JOHNSON 

